PyQt: Replace bsd.pyqt.mk with Uses/pyqt.mk.
In preparation for landing PyQt5 ports, generalize devel/py-qt4's
bsd.pyqt.mk and make it a proper file in Uses/.
Ports wishing to depend on PyQt4 ports can now do the following:
USES= pyqt:4
USE_PYQT= foo bar_build baz_run
Other changes include the renaming of the PYQT4_DIST variable to PYQT_DIST
and the introduction of the PYQT_SIPDIR plist substitution variable. The
rest of the contents of Uses/pyqt.mk are pretty much identical to what we
had in bsd.pyqt.mk with additional processing of USE_PYQT.
Even though this patch touches files in many different ports, the goal is

Build with Python 3 as well.
Instead of forcefully removing the pyuic/uic/port_v3/ directory, which in
effect prevents the port from building with Python 3, check for the major
Python version being used and selectively remove either port_v2/ or
port_v3/.
Additionally, set PYTHON_PY3K_PLIST_HACK, since PyQt does not use either
distutils or setuptools, and Python >= 3.2 store .pyc/.pyo files in a
different directory.
PR: 180467
Submitted by: nwhitehorn@ (original version)
MFH: 2014Q2

The KDE FreeBSD team is proud to announce the release of SIP-4.10 and
PyQt-4.7 for FreeBSD. The official update notes can be found at
http://www.riverbankcomputing.com
We'd like to say thanks to all helpers, testers and submitters.

- Update py-qt4 to py-qt4.5.4
- Update qscintilla-2* to 2.4
- Update py-sip to 4.8.2
- Update py-kde to 1.16.3
- Update py-qt to 1.18.1
The KDE FreeBSD team would like to say thanks to all the helpers
and submitters
New Port:
devel/py-qt4-scripttools

- Update to 4.3.3
- Configure.py now has a flag to specify component, patch is now simpler
- Update qscintilla2 so version where used
- Use bsd.pyqt.mk
Submitted by: Danny Pansters <danny@ricin.com> (maintainer via private mail)